 In some instances, this repayment of financial debt with labor included the debtor's children, essentially condemning the debtor family to perpetual slavery.About one millennium after written debt contracts were created, the concept of debt forgiveness appears in the Old Testament, called Jubilee (Leviticus 25), and in Greek law when Solon introduces Seisachtheia.Both of these historical examples of debt forgiveness involved freeing children from slavery caused by their parents' debt.